The phrase "manageable amount" refers to a quantity or level of something that is easy to handle, control, or deal with. It implies that the amount is not excessive or overwhelming, allowing for effective management and organization. Full definition
This self serve apple caramel apple bar lets you pick a much smaller and more manageable amount of apple and cover it with anything your taste buds desire. (queenofthelandoftwigsnberries.com)
When they are taken up by the pet's fat, they tend to be released slowly and in more manageable amounts. (2ndchance.info)
On the highway, wind and tire noise were present, but in very manageable amounts. (cnet.com)